92 Mr. R. I. Pocock on Neotropical Scorpions. 
fifth 3; width of brachium 3, of manus 5°6; length of hand- 
back 6, of movable digit 8. 
Two female examples from Milligalli (Ecuador), collected 
by Mr. Edward Whymper. 
Part II, 
CARABOCTONUS, gen. nov. 
(Ble Viste 8s) 
Allied to Hadrurus, and presenting all the characters of this 
genus, except that the lower surface of each foot is furnished 
with a single distally bifurcating series of close-set tufts of 
fine hair, each like the tip of a camel’s hair paint-brush. 
Moreover the presence of this “ scopula” is accompanied by 
a decrease in the size and sharpness of the inferior claw. In 
Hadrurus the inferior claw is long and sharp and the lower 
surface of each foot is furnished with a single series of short 
close-set spines. 
Type C. Keyserlingti. 
I also refer to this genus 11. charcasus of Karsch, of which 
the Museum has an example from Bolivia, and a second species 
from Callao, which is probably synonymous with either 
fH. maculatus of 'Thorell or H. robustus of Boeris. Whether 
or not /, Paascht and parvulus of Karsch belong to this 
genus I am unable to say. 
Caraboctonus Keyserlingtt, sp. n. 
Colour a uniform piceous, olivaceo- or brunneo-piceous tint, 
the legs, palpi, and caudal vesicle redder. 
The carapace with its interocular region smooth, polished, 
and sparsely punctured, the rest of it thickly granular, the 
anteocular portion not mesially sulcate, the margin lightly 
convex, the posterior region deeply sulcate mesially and at 
the sides. The tubercle undivided, a little in advance of the 
middle, the distance between the eyes greater than a diameter. 
The three lateral eyes about equidistant from each other, the 
posterior much smaller than the other two, the distances 
between the eyes about equal to the diameter of the little one. 
Tergites without keels, finely granular, the granules coarser 
posteriorly and along the hind margin, the last coarsely 
granular and indistinctly quadricostate. 
The anterior sterna smooth and highly polished; the last 
granular, with four granular keels. 
Yail robust and moderately long, a little more than four 
anda half times the length of the carapace, the segments 
